Laser



FIG. 1 is a perspective view of a laser showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevation view;

FIG. 4 is a right side view;

FIG. 5 is a left side view;

FIG. 6 is a top plan view, and

FIG. 7 is a bottom plan view of the new design. 

The ornamental design for a laser, substantially as shown. 